FANTASY: User-friendly Symplectic Geodesic Integrator for Arbitrary Metrics with Automatic Differentiation - Christian, Pierre; Chan, Chi-kwan (The Astrophysical journal, 2021)
Keywords: Algorithms; Astronomy software; Astrophysics; Black holes; Coordinate transformations; Differentiation; General relativity; Geodesics; Geodesy; Gravitation; Initial conditions; Mathematical analysis; Orbits; Publicly available software